Mötley Crüe rockers Vince Neil and Tommy Lee are locked in a petty war of words, Breaking Celebrity News has learned exclusively, as the bad boys bicker over which aging superstar should go to rehab first.

According to sources, the ’80s hair band is set to cash in with a $150 million Live Nation tour — if heavyweight front man Neil drops 40 pounds and gets treatment.

But insiders say the 58-year-old singer was infuriated by the promoters’ slim-down demands — and insisted boozehound Lee needs is the one that needs to clean up his act! And that’s not sitting well with Lee.

“Tommy is furious!” said a source close to the 57-year-old ex of Pam Anderson and Heather Locklear. “He won’t do it! He doesn’t think he has a drinking problem — but everybody else does!” the insider confessed.

As Breaking Celebrity News reported, Lee has worked hard on his image, after getting in a heated, physical fight with son Brandon last year over accusations of alcohol issues.

In February, Lee married fourth wife Brittany Furlan on Valentine’s Day. Friends of the pair seem to believe their love is “one for the ages.”

Though bassist Nikki Sixx, who recently welcomed a baby girl with wife C